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import os, stat
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import re
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import sys
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import tempfile
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tempprefix = 'hg-hghave-'
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checks = {
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"true": (lambda: True, "yak shaving"),
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"false": (lambda: False, "nail clipper"),
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}
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def check(name, desc):
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def decorator(func):
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checks[name] = (func, desc)
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return func
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return decorator
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def matchoutput(cmd, regexp, ignorestatus=False):
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"""Return True if cmd executes successfully and its output
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is matched by the supplied regular expression.
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"""
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r = re.compile(regexp)
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fh = os.popen(cmd)
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s = fh.read()
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try:
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ret = fh.close()
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except IOError:
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# Happen in Windows test environment
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ret = 1
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return (ignorestatus or ret is None) and r.search(s)
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@check("baz", "GNU Arch baz client")
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def has_baz():
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return matchoutput('baz --version 2>&1', r'baz Bazaar version')
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@check("bzr", "Canonical's Bazaar client")
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def has_bzr():
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try:
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import bzrlib
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return bzrlib.__doc__ is not None
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except ImportError:
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return False
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@check("bzr114", "Canonical's Bazaar client >= 1.14")
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def has_bzr114():
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try:
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import bzrlib
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return (bzrlib.__doc__ is not None
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and bzrlib.version_info[:2] >= (1, 14))
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except ImportError:
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return False
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@check("cvs", "cvs client/server")
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def has_cvs():
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re = r'Concurrent Versions System.*?server'
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return matchoutput('cvs --version 2>&1', re) and not has_msys()
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@check("cvs112", "cvs client/server >= 1.12")
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def has_cvs112():
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re = r'Concurrent Versions System \(CVS\) 1.12.*?server'
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return matchoutput('cvs --version 2>&1', re) and not has_msys()
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@check("darcs", "darcs client")
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def has_darcs():
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return matchoutput('darcs --version', r'2\.[2-9]', True)
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@check("mtn", "monotone client (>= 1.0)")
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def has_mtn():
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return matchoutput('mtn --version', r'monotone', True) and not matchoutput(
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'mtn --version', r'monotone 0\.', True)
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@check("eol-in-paths", "end-of-lines in paths")
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def has_eol_in_paths():
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try:
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fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix, suffix='\n\r')
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os.close(fd)
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os.remove(path)
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return True
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except (IOError, OSError):
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return False
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@check("execbit", "executable bit")
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def has_executablebit():
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try:
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EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
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fh, fn = tempfile.mkstemp(dir='.', prefix=tempprefix)
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try:
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os.close(fh)
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m = os.stat(fn).st_mode & 0777
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new_file_has_exec = m & EXECFLAGS
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os.chmod(fn, m ^ EXECFLAGS)
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exec_flags_cannot_flip = ((os.stat(fn).st_mode & 0777) == m)
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finally:
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os.unlink(fn)
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except (IOError, OSError):
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# we don't care, the user probably won't be able to commit anyway
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return False
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return not (new_file_has_exec or exec_flags_cannot_flip)
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@check("icasefs", "case insensitive file system")
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def has_icasefs():
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# Stolen from mercurial.util
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fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix)
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os.close(fd)
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try:
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s1 = os.stat(path)
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d, b = os.path.split(path)
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p2 = os.path.join(d, b.upper())
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if path == p2:
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p2 = os.path.join(d, b.lower())
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try:
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s2 = os.stat(p2)
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return s2 == s1
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except OSError:
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return False
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finally:
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os.remove(path)
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@check("fifo", "named pipes")
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def has_fifo():
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if getattr(os, "mkfifo", None) is None:
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return False
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name = tempfile.mktemp(dir='.', prefix=tempprefix)
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try:
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os.mkfifo(name)
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os.unlink(name)
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return True
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except OSError:
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return False
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@check("killdaemons", 'killdaemons.py support')
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def has_killdaemons():
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return True
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@check("cacheable", "cacheable filesystem")
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def has_cacheable_fs():
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from mercurial import util
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fd, path = tempfile.mkstemp(dir='.', prefix=tempprefix)
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os.close(fd)
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try:
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return util.cachestat(path).cacheable()
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finally:
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os.remove(path)
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@check("lsprof", "python lsprof module")
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def has_lsprof():
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try:
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import _lsprof
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_lsprof.Profiler # silence unused import warning
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return True
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except ImportError:
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return False
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@check("gettext", "GNU Gettext (msgfmt)")
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def has_gettext():
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return matchoutput('msgfmt --version', 'GNU gettext-tools')
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@check("git", "git command line client")
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def has_git():
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return matchoutput('git --version 2>&1', r'^git version')
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@check("docutils", "Docutils text processing library")
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def has_docutils():
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try:
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from docutils.core import publish_cmdline
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publish_cmdline # silence unused import
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return True
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except ImportError:
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return False
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def getsvnversion():
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m = matchoutput('svn --version --quiet 2>&1', r'^(\d+)\.(\d+)')
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if not m:
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return (0, 0)
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return (int(m.group(1)), int(m.group(2)))
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@check("svn15", "subversion client and admin tools >= 1.5")
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def has_svn15():
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return getsvnversion() >= (1, 5)
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@check("svn13", "subversion client and admin tools >= 1.3")
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def has_svn13():
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return getsvnversion() >= (1, 3)
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@check("svn", "subversion client and admin tools")
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def has_svn():
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return matchoutput('svn --version 2>&1', r'^svn, version') and \
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matchoutput('svnadmin --version 2>&1', r'^svnadmin, version')
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@check("svn-bindings", "subversion python bindings")
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def has_svn_bindings():
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try:
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import svn.core
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version = svn.core.SVN_VER_MAJOR, svn.core.SVN_VER_MINOR
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if version < (1, 4):
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return False
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return True
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except ImportError:
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return False
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@check("p4", "Perforce server and client")
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def has_p4():
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return (matchoutput('p4 -V', r'Rev\. P4/') and
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matchoutput('p4d -V', r'Rev\. P4D/'))
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@check("symlink", "symbolic links")
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def has_symlink():
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if getattr(os, "symlink", None) is None:
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return False
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name = tempfile.mktemp(dir='.', prefix=tempprefix)
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try:
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os.symlink(".", name)
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os.unlink(name)
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return True
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except (OSError, AttributeError):
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return False
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@check("hardlink", "hardlinks")
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def has_hardlink():
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from mercurial import util
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fh, fn = tempfile.mkstemp(dir='.', prefix=tempprefix)
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os.close(fh)
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name = tempfile.mktemp(dir='.', prefix=tempprefix)
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try:
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try:
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util.oslink(fn, name)
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os.unlink(name)
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return True
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except OSError:
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return False
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finally:
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os.unlink(fn)
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@check("tla", "GNU Arch tla client")
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def has_tla():
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return matchoutput('tla --version 2>&1', r'The GNU Arch Revision')
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@check("gpg", "gpg client")
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def has_gpg():
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return matchoutput('gpg --version 2>&1', r'GnuPG')
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@check("unix-permissions", "unix-style permissions")
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def has_unix_permissions():
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d = tempfile.mkdtemp(dir='.', prefix=tempprefix)
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try:
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fname = os.path.join(d, 'foo')
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for umask in (077, 007, 022):
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os.umask(umask)
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f = open(fname, 'w')
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f.close()
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mode = os.stat(fname).st_mode
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os.unlink(fname)
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if mode & 0777 != ~umask & 0666:
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return False
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return True
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|
finally:
|
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os.rmdir(d)
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|
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@check("root", "root permissions")
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|
def has_root():
|
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|
return getattr(os, 'geteuid', None) and os.geteuid() == 0
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@check("pyflakes", "Pyflakes python linter")
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def has_pyflakes():
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|
return matchoutput("sh -c \"echo 'import re' 2>&1 | pyflakes\"",
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r"<stdin>:1: 're' imported but unused",
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True)
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@check("pygments", "Pygments source highlighting library")
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def has_pygments():
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try:
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import pygments
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pygments.highlight # silence unused import warning
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return True
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|
except ImportError:
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return False
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@check("python243", "python >= 2.4.3")
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def has_python243():
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return sys.version_info >= (2, 4, 3)
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@check("outer-repo", "outer repo")
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def has_outer_repo():
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# failing for other reasons than 'no repo' imply that there is a repo
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return not matchoutput('hg root 2>&1',
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r'abort: no repository found', True)
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@check("ssl", "python >= 2.6 ssl module and python OpenSSL")
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def has_ssl():
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try:
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import ssl
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ssl.wrap_socket # silence unused import warning
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import OpenSSL
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OpenSSL.SSL.Context
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return True
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except ImportError:
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return False
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|
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|
@check("windows", "Windows")
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def has_windows():
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return os.name == 'nt'
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|
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@check("system-sh", "system() uses sh")
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def has_system_sh():
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return os.name != 'nt'
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|
@check("serve", "platform and python can manage 'hg serve -d'")
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def has_serve():
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return os.name != 'nt' # gross approximation
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@check("test-repo", "running tests from repository")
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def has_test_repo():
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t = os.environ["TESTDIR"]
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return os.path.isdir(os.path.join(t, "..", ".hg"))
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|
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|
@check("tic", "terminfo compiler and curses module")
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def has_tic():
|
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try:
|
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|
import curses
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curses.COLOR_BLUE
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|
return matchoutput('test -x "`which tic`"', '')
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|
except ImportError:
|
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|
return False
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|
|
|
|
|
@check("msys", "Windows with MSYS")
|
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|
def has_msys():
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|
return os.getenv('MSYSTEM')
|
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|
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|
@check("aix", "AIX")
|
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def has_aix():
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|
return sys.platform.startswith("aix")
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|
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|
@check("osx", "OS X")
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|
def has_osx():
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|
return sys.platform == 'darwin'
|
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|
|
|
|
@check("absimport", "absolute_import in __future__")
|
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|
def has_absimport():
|
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|
import __future__
|
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|
from mercurial import util
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|
return util.safehasattr(__future__, "absolute_import")
|
|
|
|
|
|
@check("py3k", "running with Python 3.x")
|
|
|
def has_py3k():
|
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|
return 3 == sys.version_info[0]
|
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|